GSoC project: Waveform generation element
pecisk at gmail.com
Wed Mar 28 04:43:53 PDT 2012
T , 2012-03-28 12:48 +0200, Stefan Sauer wrote:
> > One crazy idea is do the drawing
> > in C Cairo too, but that's probably overkill (and would require nice
> > set of features for developers to modify it according to their need).
> To me this sounds more like we want a wave-form gtk widget, which could
> have a model-view split. One model could use gst with the level element
> to build the waveform data, another one could peek at a waveform in
> memory, yet another one could build a sophisticated multi-zoom level
> structure (which hardly pays off these days anymore).
That's what I have been thinking about this proposal - gstreamer
waveform data part and drawing part in gtk.
> The view would do the drawing using cairo and could have a couple of
> options to customize the appearance. Be careful as here it gets
> complicated. Applications will most likely want to overlay this with:
> - selections
> - loop markers (section markers)
> - controller curves
> - ...
Yep, I will need this as Jokosher draws cursor and fade markers on
waveforms. I will have to expand my knowledge about Gtk, but it seems
Also I will have to think how to handle audio with multiple channels.
> > Currently I keep going trough materials provided by Jeff Fortin.
> Do you have a link?
These are your IRC #pitivi and email discussion logs in about waveforms
in general and in Pitivi. Jeff gave me this so I can read more what's
already been discussed (mostly about caching and .sfk type of files
In this definition now it seems reasonable GSoC project to propose,
thank you for comments.
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